Smart contract auditors and developers

Audit firms and development studios, filterable by blockchain and service. Each listing states where its information comes from.

14 vendors

Listings marked "Public information" were compiled from the companies' public pages and have not been reviewed by them. They are not partners of smart-contract.com and have not been vetted yet. Verified vendors went through our vetting process.

Blaize
Public informationUkraine
Ukrainian blockchain development company with a dedicated security audit practice
- Development
- Audit
Ethereum · Polygon · Arbitrum · Solana · Sui · +4 more
CertiK
Public informationUnited States
Web3 security firm offering manual smart contract audits, formal verification and pentests
- Audit
- Penetration testing
Ethereum · BNB Chain · Polygon · TON · Cosmos
Coinspect
Public information
Web3 security firm: smart contract, L1/L2 protocol and source code audits, penetration testing
- Audit
- Penetration testing
Ethereum · BNB Chain · Polygon · Optimism · ZKsync · +2 more
FuzzingLabs
Public informationFrance
French offensive security company auditing blockchains and smart contracts with fuzzing
- Audit
Solana · Ethereum · NEAR · Starknet · Sui · +3 more
Halborn
Public information
Blockchain security firm: smart contract assessments, L1 reviews, penetration testing, advisory
- Audit
- Penetration testing
Ethereum · Solana · Cosmos
Least Authority
Public informationGermany
Berlin security consultancy auditing smart contracts, cryptographic protocols and ZK systems
- Audit
Ethereum · Polygon · Cosmos · Solana · Avalanche
Oak Security
Public informationGermany
Munich-based Web3 security firm auditing EVM, Solana, Cosmos, Substrate and Starknet code
- Audit
- Penetration testing
Ethereum · Solana · Cosmos · Polkadot · Starknet · +2 more
OtterSec
Public information
Blockchain security firm auditing layer 1s, wallets, DeFi and bridges, with pentesting and fuzzing
- Audit
- Penetration testing
Solana · Ethereum · Sui · Aptos · Cosmos · +1 more
Rather Labs
Public informationUnited States
Web3 and AI engineering firm with a Buenos Aires team, building and auditing smart contracts
- Development
- Audit
Ethereum · Arbitrum · Base · Optimism · Polygon · +5 more
Security Research Labs
Public informationGermany
Berlin security research firm reviewing smart contracts, chain runtimes and bridges
- Audit
- Penetration testing
Ethereum · Cosmos · Solana · Polkadot
Shieldify
Public informationBulgaria
Bulgarian Web3 security company offering smart contract audits by review or by subscription
- Audit
- Penetration testing
- Development
Ethereum · Solana · ZKsync · Avalanche · BNB Chain · +1 more
Trail of Bits
Public informationUnited States
Security firm reviewing smart contracts, nodes and bridges, maker of Slither and Echidna
- Audit
- Penetration testing
Ethereum · Arbitrum · Optimism · Solana · Sui · +4 more
Zellic
Public information
Security assessments of smart contracts, ZK circuits, L1s and web applications
- Audit
- Penetration testing
Ethereum · Solana · Aptos · Sui · Cosmos
Zokyo
Public informationUnited Arab Emirates
Smart contract and protocol audits, pentesting, compliance and product development, Dubai
- Audit
- Penetration testing
- Development
Ethereum · Solana · Polygon · Arbitrum · Optimism · +9 more

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